If you are developing a new meetup and require to add a photo from a prior meetup, this is the procedure.

1. Find the photo on the meetup site that you wish to use. Click on the photo and then copy the URL of the photo.
	IE: http://photos3.meetupstatic.com/photos/event/1/f/b/0/highres_77828112.jpeg

2. This is the address of the location of the photo you want to add to your Meetup description.